Recent posts

#1

ESP32 / Re: ESP32-POE-ISO-WROVER rev L...

Last post by LubOlimex - Today at 09:44:44 AM

Try with this code (download the whole repo):

https://github.com/OLIMEX/MOD-LCD2.8RTP/tree/master/SOFTWARE/Arduino/graphicstest_olimex_NS2009

Make sure PSRAM is enabled in your board selection options (this is specific for WROVER boards).

#2

ESP32 / ESP32-POE-ISO-WROVER rev L + M...

Last post by daybreak - January 11, 2026, 10:46:11 PM

ESP32-POE-ISO-WROVER rev L + MOD-LCD2.8RTO rev D the Display only shows backlight LED. I could not activate the display with text. I have tried a lot of variants in the code. Are there any special things to make it work?

the uext gpio set up is:
| UEXT-Pin | Signal | ESP32-GPIO | Funktion |
|----------|--------|------------|----------|
| 1 | 3.3V | 3.3V | Stromversorgung |
| 2 | GND | GND | Masse |
| 7 | **MISO** | **GPIO19** | **D/C (als Output!)** |
| 8 | MOSI | GPIO23 | SPI MOSI |
| 9 | CLK | GPIO18 | SPI CLK |
| 10 | SSEL | GPIO5 | SPI CS |

#3

NXP / Re: Case for iMX8MP-SOM-EVB-IN...

Last post by ilario - January 11, 2026, 07:44:35 PM

If you want to get dimensions while you're waiting for the hardware to arrive, you can get them from the kicad files on github: https://github.com/OLIMEX/iMX8MP-SOM-EVB.

It is exactly what I tried to do, but surely I have done mistakes of millimeters here and there.
I was waiting for having my hands on the actual device for correcting the positions, but my work condition changed, and I don't think I will make a case for the device nor that I will have the device at all.
Please feel free to take the draft linked above, improve it and push it upstream.

#4

UEXT / Re: MOD-IRDA faulty ?

Last post by LubOlimex - January 09, 2026, 03:31:43 PM

Indeed, thank you for your research. I got back to testing this and the distance is up to 2.5-3m which is unexpectedly low, we determined that the LED is simply small for better distance. The engineers wanted to save space but it is not worth it. In future we would switch to 5mm IR333-A, which seems to improve the range to around 10m which is much better. Thank you for reporting this.

#5

A20 / Re: A20 Board Power Consumptio...

Last post by silencebeneath - January 09, 2026, 09:42:38 AM

Hi everyone, I'm using an A20 OLinuXino board for a low-power project. I'd like to know the typical power consumption of the board when it's in sleep or idle mode with no peripherals connected. Are there any recommended settings or tweaks to minimize power usage in this state? Thanks in advance!

As far as I know, the A20 processor isn't made to use as little electricity as possible. Still, I'm curious whether there are any system settings or changes that could aid lower power use in this scenario.

#6

A20 / Booting A20 OLinuXino from USB

Last post by sophia2005 - January 08, 2026, 11:14:19 AM

Hello everyone,
I'm trying to boot my OLinuXino A20 from a USB drive instead of an SD card, but it's not working. I've tried changing settings in u-boot, but the device still doesn't detect the USB. Has anyone successfully booted the A20 from a USB drive? I would appreciate a detailed guide or the necessary steps to configure U-Boot and the filesystem on the USB.

#7

A20 / Re: A20 Board Power Consumptio...

Last post by sulllymin - January 08, 2026, 10:04:29 AM

Good question—power draw in idle can really make or break low-power projects. Tuning sleep states and disabling unused interfaces usually helps a lot.
SoFlo Wheelie Life

#8

FPGA / Re: toolchain for GateMateA1-E...

Last post by LubOlimex - January 05, 2026, 08:21:39 AM

We have no experience with it. Only used the OSS CAD Suite.

#9

FPGA / toolchain for GateMateA1-EVB

Last post by mastupristi - January 04, 2026, 06:12:38 PM

Hello,
The document ug1002 "Toolchain Installation User Guide" is listed on your website.

Inside I find:


Following the directions, however, I find this:
https://colognechip.com/programmable-logic/gatemate/toolchain/

It seems that document ug1002 describes the legacy toolchain called cc-toolchain-linux.tar.gz,
but as you can see on the page, the most recent toolchain is oss-cad-suite-linux.

However, I cannot find any usable examples in this new toolchain.

I found some examples (perhaps) that could be useful here: https://github.com/YosysHQ/prjpeppercorn-test-cases

What do you think about using the new toolchain?
Do you have any quick guides on this? Or even just suggestions?

regards
Max

#10

FPGA / Re: Questions about GateMateA1...

Last post by mastupristi - January 04, 2026, 05:40:57 PM

Hi,

No idea. Some bit file was provided by Cologne community if I remember correct. The software usage is detailed here: https://github.com/OLIMEX/GateMateA1-EVB/blob/main/SOFTWARE/ug1002-toolchain-install-latest.pdf

I found this: https://youtu.be/lMUQplZXPoM?si=BMzlcv0eBE_oDg0y
Where they referred to the 'blink' example.
It is present in the toolchain, but it needs to be edited to change the pin definition, which is set to CCGM1A1-E1 by default.
I searched on GitHub and found a couple of repositories that contain the blink example with the pin definition for Olimex:

• https://github.com/tgingold/gatemate-designs
• https://github.com/rugosi/olimex_gatemate_evb

I hope this helps others.

regards